diff --git a/app/src/main/java/io/legado/app/utils/EncodingDetect.java b/app/src/main/java/io/legado/app/utils/EncodingDetect.java
index b026eff34..8447ed238 100644
--- a/app/src/main/java/io/legado/app/utils/EncodingDetect.java
+++ b/app/src/main/java/io/legado/app/utils/EncodingDetect.java
@@ -4365,6 +4365,7 @@ class BytesEncodingDetect extends Encoding {
     }
 }
 
+@SuppressWarnings("ALL")
 class Encoding {
     // Supported Encoding Types
     static int GB2312 = 0;